App( {
  onLaunch: function() {
    //调用API从本地缓存中获取数据
    var logs = wx.getStorageSync( 'logs' ) || []
    logs.unshift( Date.now() )
    wx.setStorageSync( 'logs', logs )

  },
  getUserInfo: function( cb ) {
    var that = this
    if( this.globalData.userInfo ) {
      typeof cb == "function" && cb( this.globalData.userInfo )
    } else {
      //调用登录接口
      wx.login( {
        success: function() {
          wx.getUserInfo( {
            success: function( res ) {
              that.globalData.userInfo = res.userInfo
              typeof cb == "function" && cb( that.globalData.userInfo )
            }
          })
        }
      })
    }
  },
  globalData: {
    userInfo: null,
    userToken: null,
  }
})
